5110 was fantastic. I did not realize this before, but about 10 years ago needed a replacement phone quickly and had an old 5110 in storage. Charged up, powered up, switched on and in less than 10 seconds could make a call. Fantastic booting speed, very fast phone.

Found a video where the boot-up speed/usage are shown: https://www.youtube.com/watch?v=d40KwKvCGZo